hi,
i am getting teh same error in my log file too.
this is what i got in the log file. i am using admin , admin as username ans password.
16:34:54,234 ERROR [org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/alfresco].[WebDAV]] Servlet.service() for servlet WebDAV threw exception
org.alfresco.error.AlfrescoRuntimeException: Transaction must be active and synchronization is required
at org.alfresco.repo.transaction.AlfrescoTransactionSupport.registerSynchronizations(AlfrescoTransactionSupport.java:364)
at org.alfresco.repo.transaction.AlfrescoTransactionSupport.getSynchronization(AlfrescoTransactionSupport.java:349)
at org.alfresco.repo.transaction.AlfrescoTransactionSupport.bindNodeDaoService(AlfrescoTransactionSupport.java:203)
at org.alfresco.repo.transaction.NodeDaoServiceTransactionInterceptor.invoke(NodeDaoServiceTransactionInterceptor.java:59)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:170)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:176)
at $Proxy1.getNode(Unknown Source)
at org.alfresco.repo.node.db.DbNodeServiceImpl.exists(DbNodeServiceImpl.java:116)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:335)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:165)
at $Proxy2.exists(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.alfresco.repo.service.StoreRedirectorProxyFactory$RedirectorInvocationHandler.invoke(StoreRedirectorProxyFactory.java:212)
at $Proxy3.exists(Unknown Source)
at org.alfresco.repo.security.person.PersonServiceImpl.getPersonOrNull(PersonServiceImpl.java:149)
at org.alfresco.repo.security.person.PersonServiceImpl.getPerson(PersonServiceImpl.java:106)
at org.alfresco.repo.webdav.auth.AuthenticationFilter.doFilter(AuthenticationFilter.java:149)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:868)
at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:663)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Thread.java:595)
thanks prasanth